mb/pcengines/apu2/Kconfig: select HUDSON_FADT_LEGACY_DEVICES

The APU boards have an NCT5104D chip on the LPC bus that implements some
serial ports that have the legacy IO port interface to the host and
doesn't describe this in the ACPI tables, so select
HUDSON_FADT_LEGACY_DEVICES to have the corresponding FADT bit set. Since
this chip doesn't provide an 8042-compatible keyboard controller, don't
select HUDSON_FADT_8042.

TEST=Surprisingly, this doesn't seem to make a difference to the Linux
kernel; is creates all ttyS[0..3] devices with and without this patch.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I8872b8c3d6e0610630ba17a0fccdcf8cebb1d3c0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79894
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/mainboard/pcengines/apu2/Kconfig

@@ -12,6 +12,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select SUPERIO_NUVOTON_NCT5104D
 	select HAVE_PIRQ_TABLE
 	select HAVE_ACPI_TABLES
+	select HUDSON_FADT_LEGACY_DEVICES
 	select BOARD_ROMSIZE_KB_8192
 	select HAVE_SPD_IN_CBFS
 	select MEMORY_MAPPED_TPM